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<h1>2. Developer&#8217;s Guide<a class="headerlink" href="#developer-s-guide" title="Permalink to this headline">¶</a></h1>
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<li class="toctree-l1"><a class="reference internal" href="camera.html">2.1. Scanning From the Camera Feed</a><ul>
<li class="toctree-l2"><a class="reference internal" href="camera.html#using-a-zbarreaderviewcontroller">2.1.1. Using a ZBarReaderViewController</a></li>
<li class="toctree-l2"><a class="reference internal" href="camera.html#using-a-zbarreaderview">2.1.2. Using a ZBarReaderView</a></li>
<li class="toctree-l2"><a class="reference internal" href="camera.html#using-the-zbarcapturereader">2.1.3. Using the ZBarCaptureReader</a></li>
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<li class="toctree-l1"><a class="reference internal" href="picker.html">2.2. Scanning a User-Selected Image</a><ul>
<li class="toctree-l2"><a class="reference internal" href="picker.html#handling-failure">2.2.1. Handling Failure</a></li>
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<li class="toctree-l1"><a class="reference internal" href="custom.html">2.3. Customizing the Interface</a><ul>
<li class="toctree-l2"><a class="reference internal" href="custom.html#customizing-the-overlay">2.3.1. Customizing the Overlay</a></li>
<li class="toctree-l2"><a class="reference internal" href="custom.html#presenting-help">2.3.2. Presenting Help</a></li>
<li class="toctree-l2"><a class="reference internal" href="custom.html#customizing-the-help-content">2.3.3. Customizing the Help Content</a></li>
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<li class="toctree-l1"><a class="reference internal" href="optimizing.html">2.4. Optimizing the Reader</a><ul>
<li class="toctree-l2"><a class="reference internal" href="optimizing.html#measuring-performance">2.4.1. Measuring Performance</a></li>
<li class="toctree-l2"><a class="reference internal" href="optimizing.html#delegate-latency">2.4.2. Delegate Latency</a></li>
<li class="toctree-l2"><a class="reference internal" href="optimizing.html#image-quality">2.4.3. Image Quality</a></li>
<li class="toctree-l2"><a class="reference internal" href="optimizing.html#frame-rate">2.4.4. Frame Rate</a></li>
<li class="toctree-l2"><a class="reference internal" href="optimizing.html#examples">2.4.5. Examples</a></li>
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<li class="toctree-l1"><a class="reference internal" href="compat.html">2.5. Backward Compatibility</a><ul>
<li class="toctree-l2"><a class="reference internal" href="compat.html#the-private-api">2.5.1. The Private API</a></li>
<li class="toctree-l2"><a class="reference internal" href="compat.html#upgrading-to-ios-4">2.5.2. Upgrading to iOS 4</a></li>
<li class="toctree-l2"><a class="reference internal" href="compat.html#supporting-ios-3-x">2.5.3. Supporting iOS 3.x</a></li>
<li class="toctree-l2"><a class="reference internal" href="compat.html#example-fallback-to-manual-capture">2.5.4. Example: Fallback to Manual Capture</a></li>
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<li class="toctree-l1"><a class="reference internal" href="licensing.html">2.6. Licensing the Library</a><ul>
<li class="toctree-l2"><a class="reference internal" href="licensing.html#licensing-faq">2.6.1. Licensing FAQ</a></li>
<li class="toctree-l2"><a class="reference internal" href="licensing.html#modifications">2.6.2. Modifications</a></li>
<li class="toctree-l2"><a class="reference internal" href="licensing.html#object-file-distribution">2.6.3. Object File Distribution</a></li>
<li class="toctree-l2"><a class="reference internal" href="licensing.html#using-the-unmodified-library">2.6.4. Using the Unmodified Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="licensing.html#using-a-modified-library">2.6.5. Using a Modified Library</a></li>
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